Window regulator



Aug. 29, 1961 D. c. PROBST 2,998,246

WINDOW REGULATOR Filed Jan. 7, 1955 3 Sheets-Sheet l INVENTOR ATTORNEYAug. 29, 1961 c, PRQBST 2,998,246

WINDOW REGULATOR Filed Jan. 7, 1955 3 Sheets-Sheet 2 TTORNEY Aug. 29,1961 1:. c. PROBST 2,993,246

' WINDOW REGULATOR Filed Jan. 7, 1955 3 Sheets-Sheet 3 5 g ATTORNEYPatented Aug. 29, 1961 free Delaware Filed Jan. 7, 1955, Ser. No.480,459 7 Claims. (Cl. 268124) This invention relates to a windowregulator and more particularly to a window regulator for moving avehicle window into and out of a window well along a curvilinear path toopen and close a window opening.

The recently introduced four-door hard top sedan has no center pillarabove the body belt line and no door window frames above the body beltline except for the ventipane window frame at the forward portion of thefront door. This results in a continous window opening from theventipane window to the rear quarter area when the front and rear doorwindows are in down position. The front and rear door windows sealagainst each other and the roof rail to close the window opening, thefront door window also sealing against the ventipane window frame.

There are many problems presented by the rear window installation inthis type of automobile. The rear window overlaps the center pillar inup position in order to seal against the front window, which requiresthat the window have forward and rearward movement as well as verticalmovement in order to be moved into and out of the door well. The frontwindow may have conventional vertical movement between open and closedpositions. The rear window must also be irregularly shaped because ofthe styling of the body belt line portion of the door and the styling ofthe roof rail. The rear wheel housing projects into the lower rearportion of the rear door to reduce window stowage space to a minimum andto prevent vertical straight line movement of the window into and out ofthe door well.

This invention solves the many problems presented by this type of rearwindow installation by providing a window regulator moving the rearwindow along a curvilinear path between open and closed positions. Thewindow regulator also securely holds the window in any position withoutrattling or lateral rotation, for the absence of door window framesabove the belt line tends to increase both rattling and lateralrotation.

The window regulator of this invention has many out standing andnoteworthy features in its preferred embodiment. One of the principalfeatures lines in the window regulator linkage which controls the entiremovement of the window along its curvilinear path. A lift arm slidablyconnected to the window lower frame and pivotally mounted on the innerdoor panel provides the power for the movement of the window. A pair oflinks in fixed angular relationship are pivotally supported on the liftarm at their junction and function as a bell crank lever. The free endof one link is slidably connected to the window lower frame and the freeend of the other link is pivotally connected to the free end of a thirdlink pivoted on the inner door panel. This third link may be called thepivoting restricting link, or controlling link, for the posi tion ofthis link is critical with respect to any given geometry of the windowmovement and by changing the pivoting point of the link on the innerpanel, the curvilinear path of the window movement can be varied withoutthe use of any other mechanism.

Another principal feature of this invention lies in the front and rearguides fixedly mounted on the inner door panel and slidably connected tothe window frame. As hereinbefore stated, both the lift arm and the onelink of the pair in fixed angular relationship are slidably connected tothe window frame. The front and rear guide channels control the fore andaft shifting movement of the window and maintain the correctrelationship of the window with the inner door hardware and the innerand outer door panels to prevent interference. They have no functionwhatsoever of controlling the pivotal movement of the window as it movesalong its curvilinear path.

Another feature of this invention lies in the fact that both the frontand rear guide channels and the window regulator linkage are mounted onthe inner door panel to one side of the window. As hereinbefore stated,the window stowage space is decreased to a minimum by the rearwheelhousing and by the styling of the body belt line and, therefore, only aminimum amount of stowage space and space for the window regulator andguides is available. By mounting the guide channels and the windowregulator linkage on the inner door panel, space is provided for thewindow, the window regulator, and the guides within the door well.

Another further feature of this invention lies in the use of a lateralstabilizer to prevent tilting movement of the window as it moves alongits curvilinear path or in any fixed position of the window. Thislateral stabilizer includes a channel pivotally mounted on the windowlower frame at its upper portion with the lower portion of the channelpivotally and slidably mounted on the outer door panel by means of asupporting bracket and a stud. As the window moves along its curvilinearpath, the lower portion of the channel slides on the stud and follows acurvilinear path different from that of the window.

These and other features of this invention will be readily apparent fromthe following specification and drawings, in which:

FIGURE 1 is a side elevational view of the window regulator of thisinvention mounted within the rear door of a four-door hard top sedanwith the window in up position;

FIGURE 2 is a view similar to FIGURE 1 showing the window in partiallyopen position;

FIGURE 3 is a view similar to FIGURE 1 showing the window in downposition;

FIGURE 4 is a sectional view on the plane indicated by line 4-4 ofFIGURE 1;

FIGURE 5 is a sectional view on the plane indicated by line '55 ofFIGURE 4;

FIGURE 6 is a sectional view on the plane indicated by line 6-6 ofFIGURE 1; and

FIGURE 7 is a sectional view on the plane indicated by line 7-7 ofFIGURE 1.

Referring now to FIGURE 1 of the drawings, a vehicle body 2 includes afront door 4 hinged at its forward edge to the body and latched at itsrearward edge to the center pillar 6, and a rear door 8 hinged at itsforward edge to the center pillar 6 and latched at its rearward edge 10to the vehicle body. The center pillar 6 extends only from the floor ofthe vehicle to the body belt line, which is the top edge of the frontand rear doors. A front win- 'dow 12 mounted within a window frame 13 issupported within door 4 by asuitable window regulator for verticalmovement between open and closed positions. The window seals against theroof rail 14 in closed position and also against the ventipane windowframe (not shown) extending upwardly at the forward portion of door 4 tothe roof rail and pivotally supporting a ventipane window. A rear window16 mounted within a window frame 17 is supported within door 8 by thewindow regulator of this invention and seals against the roof rail 14and the front window 12 in closed position. Thus, it can be seen thatwhen both the front and rear windows are in open position, a continuouswindow opening extends from the ventipane window frame to the rearquarter area 18 of the body and accounts for the name of this type ofautomobile, a four-door hard top sedan.

Inasmuch as there is no support for either the front or rear windowsabove the body belt line, each window must be supported entirely withinthe door Wells of the front and rear doors. The front window 12 movesvertically between open and closed positions and a suitable windowregulator of known type may be used. However, the rear window cannotmove vertically between open and closed positions since it must overlapthe center pillar 6 in closed position in order to seal against thefront window. The rear door 8 extends rearwardly beyond the rear quarterarea 18 of the body and the rear wheel housing (not shown) projects intothe lower rear portion of the door. This requires that a portion 20 ofthe rear wall of door 8 be offset forwardly of the body to furtherprevent vertical movement of window 16. Thus, in order to stow window 16within the rear door in open position, the window must move along acurvilinear path between open and closed positions. This curvilinearpath is an irregular curvilinear path, for the window pivots about anumber of instantaneous centers as it moves between open and closedpositions.

The window regulator of this invention will now be described. A backplate 24 mounted on the inner door panel 25 supports an electric motor26 driving a worm and pinion gear arrangement 28. A sector gear 30pivoted on the back plate 24 at 32 is driven by the pinion gear andmoves the window between open and closed positions by means of thewindow regulator linkage. This linkage includes a lift arm 34 pivoted onthe back plate at 36 and connected to the sector gear by a shifting link38 pivoted to an angular extension 40 of the lift arm at 42 and to thesector gear at 44. The free end of the lift arm supports a stud 46slidably mounted in a retainer channel 43, FIG- URE 4. The retainerchannel is secured to the base of a channel 50 formed within the lowerframe portion 52 of window frame 17 and facing inwardly of the vehiclebody. A link 54 pivotally supported at one end by lift arm 34 supports astud 56, FIGURE 4, at its other end which is slidably mounted in theretainer channel 48. Another link 58 pivoted on the inner door panel 25at 59 has its free end pivotally connected at 60 to one end of anintermediate link 62 pivotally supported by lift arm 34 opposite to link54.

Referring now to FIGURE 6 of the drawings, the pivotal support of links54 and 62 on lift arm 34 will be described. A stud 64 having oppositeflat portions 65 on its shouldered portion 66 and opposite flat portions67 on its cylindrical shank portion 68 of reduced diameter is rotatablysupported by lift arm 34. Links 54 and 62 having openings 69 and 70similar to the cross section of stud 64 at flat portions 67 and 65,respectively, are positioned by the stud on either side of the lift arm.Thus, the stud maintains links 54 and 62 in fixed angular relationshipso that they function as a bell crank lever and allows rotation of thelinks relative to the lift arm independently of any swinging movement ofthe lift arm about pivot 36. Washers 71 and 72 provided between lift arm34 and links 54 and 62, respectively, prevent binding between the linksand the lift arm. Link 58 may be called the pivoting restricting link orcontrolling link, for the position of this link is critical with respectto any given geometry of the window movement. By changing the pivotingpoint 59 of the link on the inner door panel, the curvilinear path ofthe window movement can be varied without the use of any othermechanism.

Since both the lift arm and link 54 are slidably mounted within theretainer channel 48, front and rear guides 74 and 76, respectively, arenecessary to control fore and aft shifting movement of the window and tomaintain the correct relationship of the window with the inner and outerdoor panels and the inner door hardware to prevent interference as thewindow moves between open and closed positions. A pair of L-shapedbrackets 77 welded to one side of front guide 74 adjacent the ends ofthe guide are bolted to the inner door panel at 78 to support the frontguide within the door well. The rear guide 76 has an outwardly flangededge 79 extending the length of the guide, an outwardly extending ribSit spaced from flange 79 and extending partially the length of theguide, and an offset flange portion 82 bolted to the inner door panel 25at 34 and 86 to support the rear guide within the door well. An inwardlyextending stud 88 fixed to the inner side of the lower frame portion 52of the window frame slides in the front guide 74 and a similar stud 90similarly fixed to frame 52 slides on surface 92 of the rear guide.

The fore and aft shifting movement of stud 90 relative to surface 92 islimited by flanged edge '79 and rib 36 during part of the slidingmovement of the stud, and flanged edge 79 limits the rear ward shiftingmovement of the stud during the remainder of its sliding movement. Thefront guide 74 is in the form of a continuous channel to control thefore and aft sliding movement of stud 88 during its entire path oftravel. It will be noted that both the front and rear guides are mountedon the inner door panel inboard of window 16 in order to increase thestowage space within the door well as hereinbefore described.

The front and rear guide channels control the shifting movement of thewindow in fore and aft directions and in order to prevent tiltingmovement or lateral instability of the Window as it moves between openand closed positions or in any fixed position of the window, a lateralstabilizer is used. Referring now to FIGURES 1, 4, and 5, a plate 94bolted at 96 to the outer surface of the lower frame portion 52 of thewindow frame supports a stud 9-8 at the upper portion of the plate. Thestabilizer arm includes an outwardly facing channel 1% welded to asimilar channel 102 of smaller cross section and rotatably supported onplate 94 by stud 93. Channel 102 engages a stud 104 adjustably supportedon channel 106 by a nut and bolt arrangement 108. Channel 166 spans thelower portion of door 8 and is secured to the front and rear surfaces ofthe door. A rubber lining 1110 provided between the flanged edges 112 ofthe channel and the outer door panel 114 prevents rattling between thechannel and the door. An L-shaped lug 116, FIGURE 5, welded to one sideof plate 94 partially surrounds channel in the closed position of thewindow as can be seen in FIGURES l and 5.

Thus, in the closed position of the window, tilting movement of thewindow inboard of the body is minimized by the leverage action of thestabilizer arm on studs 98 and 104 and the large bearing area betweenplate 94 and channel 100, and tilting movement of the window outboard ofthe body is minimized by the same leverage action and the engagement oflug 116 within one side 117 of channel 100. As the window moves betweenopen and closed positions, as can be seen in FIGURES 2 and 3, thestabilizer arm moves outwardly from underneath lug 116 and follows acurvilinear path different from that of the window. After the stabilizerarm has moved from underneath lug 116 the effectiveness of the arm isdecreased in relation to outboard tilting movement of the window but theleverage action of the arm on studs 98 and 104 still holds this tiltingmovement to a minimum. However, since lateral instability or tiltingmovement of the window is most objectionable in the closed orsubstantially closed position of the window, the interlock between thelug and stabilizer arm is most effective where needed.

Additional lateral stability of the window in closed position isprovided by a tongue and groove interlock between the forward portion ofthe lower window frame portion 52 and the inner and outer door panels.Referring now to FIGURES l and 7, a bracket 118 secured to the inner andouter door panels mounts a triangularlyshaped tongue 120 which isadjustably secured to the bracket by bolts 122 extending through slots123 in the bracket to allow adjustment of the tongue relative to thebracket. A grooved member 124 adjustably bolted to the lower windowframe portion 52 at 126 interlocks with the tongue member in the closedposition of the window as shown in FIGURE 1 to add additional lateralstability to the window in closed position.

Various stop arrangements are provided to adjust the position of thewindow in both open and closed positions. An L-shaped bracket 128adjustably bolted at 129 to the lower slotted end of the front guide 74provides a stop for the forward portion of the lower edge of windowframe portion 52 in the open position of the window, as can be seen inFIGURE 3. A cylindrical rubber member 130 supported by a bolt I32extending into a threaded aperture in the lower edge of the window frameportion 52 provides a stop for the rear portion of the lower edge ofwindow frame portion 52 in the open position of the window by engagingan offset portion 134 of portion 26 of the rear wall of door 8. Thus,the open position of the window within the door well is controlled byboth adjustable stops.

Since the rear window 16 must overlap the center pillar 6 in closedposition and seal against the front window 12, a yielding stop isprovided to ensure that the forward edge of the rear window will belocated in a substantially vertical position to prevent interferencewith vertical movement of the front window and to effectively sealagainst the rear edge of the front window in the closed position of thefront window. Referring now to FIG- URE 6 of the drawings, an L-shapedbracket 136 bolted to the inner door panel 25 at 138 supports a bolt140. An apertured rubber cylinder 142 fits on the shank of the bolt andextends between the bolt head and an apertured cup-shaped member 144also fitting on the shank of the bolt and bearing against bracket 136.As the window moves upwardly to closed position, the upper edge of liftarm 34 engages the bolt head to stop upward movement of the window andlocate the front edge of the window in a substantially verticalposition. The rubber cylinder extending between the bolt head and thecupshaped member provides resiliency to reduce any noise caused by theengagement of the lift arm with the bolt head and reduce the shocktransmitted to the pivot 36 of the lift arm on the back plates 24.

Referring now to FIGURES l, 2, and 3 of the drawings, the operation ofthe window regulator linkage will be described. As lift arm 34 swingsdownwardly and clockwise about pivot 36 from its position of FIGURE 1 toits position of FIGURE 2, stud 46 slides slowly rearwardly withinretainer channel 48 and moves the rear portion of the window rearwardlyand downwardly away from roof rail 14 at a faster rate than the forwardportion of the window. This allows the forward portion of the window tomove rearwardly and slightly downwardly from the roof rail 14 andwithdraw the forward portion 159 of window frame portion 52 from theoverlapping position with respect to center pillar 6 of FIGURE 1 to theposition shown in FIGURE 2. If the rearward portion of the window didnot move downwardly at a faster rate than the forward portion of thewindow, the forward portion of the window could not be moved away fromthe roof rail and the portion 150 of the window frame could not bewithdrawn from overlapping position with respect to the center pillar.

During this initial movement of the window from the position of FIGURE 1to the position of FIGURE 2, links 54 and 62 are likewise movedrearwardly and downwardly as stud 64 moves clockwise in an are aboutpivot 36 at a slower rate of travel than the rate of travel of stud 46in its are about pivot 36. As link 62 moves downwardly with the lift arm34, it is slightly rotated counterclockwise about the lift arm as link58 swings counterclockwise in an are about pivot 59. This slightlyrotates link 54 in a counterclockwise direction about the lift arm sinceboth links 54 and 62 are rotatably supported in fixed angularrelationship on the lift arm by stud 64. The movement of points 56 and46 rotate the window slightly e 6 clockwise, lowering the rear portionrelative to the front portion.

Considering now that the pivotal connection 60 between links 62 and 58swings in an are about pivot 59 and that this are controls the rotationof link 62 about the lift arm 34 and also the rotation of link 54 aboutthe lift arm, the movement of the window from its position of FIGURE 2to its position of FIGURE 3 will be described. Referring now to FIGURE1, an arc can be struck about pivot 36 through pivot 60 in the closedposition of the window and this are will diverge away from the are ofpivot 60 about pivot 59. Initially the two arcs are tangent to eachother, and then both arcs begin to diverge in a downward direction, theare about pivot 36 diverging in a clockwise direction and the are aboutpivot 59 diverging in a counterclockwise direction. It should also benoted that the are about pivot 36 is concentric with the arc of pivot 64about pivot 36 and the arc of stud 46 about pivot 36. Thus, as thewindow initially moves rearwardly and downwardly from its position ofFIGURE 1 to its position of FIGURE 2, pivot 60 and its arc of movementcontrol the rotation of links 54 and 62 and thus the downward movementof the forward portion of the window. Pivot 60 moves in its are ofmovement about pivot 59 only a slight distance, and since at thisportion of the are it is tangent to the are about pivot 36 and justbeginning to diverge, there is no appreciable downward movement impartedto the forward portion of the window. Therefore, the window movesrearwardly and downwardly, with the rear portion of the window movingdownwardly at a greater rate of travel than the forward portion of thewindow.

However, as the rearward and downward movement of the window continuesfrom its position of FIGURE 2 to its position of FIGURE 3, the arc ofpivot 60 about pivot 59 diverges substantially from the are about pivot36, and thus links 62 and 54 are rotated an increasing amount relativeto lift arm 34 causing stud 56 to impart a downward movement to theforward portion of the window and causing the forward portion of thewindow to move downwardly at a faster rate than the rear portion of thewindow until the window frame portion abuts against the stopshereinbefore described and assumes its position of FIGURE 3.

In this position of the window, pivot 60 in its are about pivot 59 is atthe greatest distance of divergence from the are about pivot 36, andthus if it is now desired to raise the window from its position ofFIGURE 3 to its position of FIGURE 2, the forward portion of the windowswings upwardly at a greater rate of travel than the rear portion of thewindow until the window again assumes its position of FIGURE 2. At thisposition of the window and during movement of the window to the positionof FIGURE 1, the window moves forwardly, and the rear portion moves at agreater rate than the forward portion of the window since the arc ofpivot 60 about pivot 59 is approaching tangency with the are about pivot36. Thus, the window then moves to its position of FIG- URE l with noappreciable forward and upward movement imparted to the window by studs56 of link 54, since for all practical purposes this stud is now movingin an are about pivot 36 concentric with the arcs of studs 64 and 46and, therefore, stud 46 will impart substantially all the forward andupward movement to the window since it must move at a faster ratethrough its are about pivot 36 than either studs 64 or 60 because of itsgreater radial distance from pivot 36. Thus, the general statement canbe made that during the initial downward movement of the window orduring the final upward movement of the window, pivot 60 can be said tomove in an are about pivot 36 concentric with the arcs of travel ofstuds 64 and 56, and since stud 56 is at the greater radial distancefrom pivot 36 than pivot 60 and thus must move at a faster rate oftravel, it will impart all the force to the window in these stages ofmovement.

As hereinbefore described, the link 58 may be called the pivotingrestricting link or controlling link and the position of pivot 59 iscritical with respect to any given geometry of the window movement forby changing the position of this pivot, the curvilinear path of thewindow movement can be varied without the use of any other mechanism.This is true since pivot 59 controls the arc of travel of pivot on andthe rotation of links 54 and 62. relative to the lift arm which controlsany force imparted to the forward portion of the window.

It must also be remembered that the window regulator linkage of thisinvention must be employed with guides to control the fore and aftshifting movement of the window as it moves between open and closedpositions, since both the lift arm 34 and the link 54 are slidablyconnected to the window. The guides must be of a certain shape andspaced apart at certain distances to allow rearward and downward andforward and upward movement of both the front and rear portions of thewindow without any binding of studs 88 and Q with respect to the guides,and thus, the shape and spacing of the channels will vary with thevarious curvilinear paths of movement which may be imparted to variouswindows to stow them within the door well.

The window illustrated moves in a vertical plane of travel, but it isobvious that the window may follow a curved path when moving betweenopen and closed positions by appropriately curving the front and rearguide channels in an outward direction with respect to the inner doorpanel and allowing a certain play between studs 46 and 54 and theretainer channel 48 so that the studs can move inwardly and outwardly inthe retainer channel. The window may also be curved so that it willfollow the outer contour of the rear door when in closed position andthe window regulator of this invention may be used with equal successwith the slight modifications just previously noted. Since both thewindow regulator linkage and the guide channels are mounted on the innerdoor panel inboard of the window in all positions of the window,curvature of the guide channels and the window may be had withoutmaterially reducing the stowage space within the door well to a pointwhere it will not receive the window in closed position.

While a specific embodiment of this invention has been shown anddescribed, various changes and modifications may be made within thescope and spirit of the invention.

We claim:

1. A window regulator mechanism for imparting translational androtational movement to a vehicle window comprising, a support, a drivingarm pivotally mounted on said support and pivotally connected to saidwindow, a balance arm pivoted on said driving arm and pivotallyconnected to said window, and a control link having one end thereofpivotally mounted on said support and the other end thereof pivotallyconnected to said balance arm for swinging said balance arm about saiddriving arm as said driving arm imparts translational movement to saidwindow to cause said balance arm to rotate said window about saidpivotal connection of said driving arm to said window in a directionopposite the direction of swinging of said driving arm.

2. A window regulator mechanism for imparting translational androtational movement to a vehicle window comprising, a support, a drivingarm pivotally mounted on said support and pivotally connected to saidwindow, a balance arm pivoted on said driving arm and pivotallyconnected to said window, and a control link having one end thereofpivotally mounted on said support for swinging movement of said link ina direction opposite the direction of swinging movement of said drivingarm, the other end of said link being pivotally connected to saidbalance arm for swinging said balance arm about said driving arm as saiddriving arm imparts translational movement to said window to cause saidbalance arm to rotate said window about said pivotal connection of saiddriving arm to said window in a direction opposite the direction ofswinging of said driving arm.

3. A window regulator mechanism for imparting translational androtational movement to a vehicle window movable between open and closedpositions comprising, a support, a driving arm pivotally mounted on saidsupport and pivotally connected to said window, a balance arm pivoted onsaid driving arm and pivotally connected to said window, and a controllink pivotally mounted on said support and pivotally connected to saidbalance arm for swinging said balance arm about said driving arm as saiddriving arm imparts translational movement to said window to cause saidbalance arm to rotate said window about said pivotal connection of saiddriving arm to said window in a direction opposite the direction ofswinging of said driving arm, the pivotal connection between saidcontrol link and said balance arm lying at the tangent point of arcshaving their centers at the pivotal connection of said driving arm onsaid support and the pivotal connection of said control link on saidsupport in one of said positions of said window.

4. In a window control mechanism for raising and lowering a window in amotor vehicle body, a regulator gear pivotally mounted upon the body, anactuating arm having its lower end movable with said regulator gear andits upper end pivotally connected to the lower edge of said windowrearwardly of the center thereof, a second arm pivotally connectedintermediate its ends to an intermediate part of said actuating arm, ahorizontal guideway at the lower edge of said window forwardly of thecenter thereof, means slidably connecting the forward end of said secondarm to said guideway, a short link having its lower end pivotallyconnected to the lower end of said second arm, means pivotallyconnecting the upper end of said link to said body at a point spacedrearwardly and above the connection of said link to said second arm toeffect an initial rearward movement of the upper end of said second armand a subsequent downward move ment thereof to move the forward portionof the window first generally rearwardly and then generally downwardly.

5. The structure defined by claim 4 which is further characterized inthat said actuating arm and said second arm diagonally cross each otherin the raised position of the window to form generally an X-shape, saidshort link being so positioned that the pivotal connection between thelink and said second arm moves in an arc diagonally downwardly andrearwardly during the initial lowering movement of the window andsubsequently moves generally rearwardly during the lowering movement ofsaid Window.

6. In a window control mechanism for raising and lowering a window in amotor vehicle body, a pair of regulator arms pivotally interconnectedintermediate their ends and crossing each other in X fashion in theraised position of said window, regulator mechanism connected to one ofsaid regulator arms to raise and lower said window, means pivotallyconnecting one end of one of said regulator arms to the lower portion ofsaid window, means pivotally connecting the opposite end of said oneregulator arm to said vehicle body at a fixed point, means connectingone end of the other of said regulator arms to the lower portion of saidwindow for longitudinal sliding movement therealong, and a link movablysupporting the opposite end of said other regulator arm upon saidVehicle for movement in a predetermined path, said link having its lowerend pivotally connected to said last mentioned regulator arm and itsupper end pivotally connected to said vehicle body, said link extendingdiagonally upwardly and longitudinally away from the pivotal connectionof said one regulator arm to said vehicle body in the raised position ofsaid window to move said pivotal connection between said link and saidlast mentioned regulator arm first in an arc generally downwardly andlongitudinally and subsequently generally longitudinally in the loweringmovement of said window.

9 10 7. In a window control mechanism for raising and lowdiagonallyupwardly and longitudinally away from the ering a window, a support, apair of regulator arms pivotpivotal connection of said one regulator armto said ally interconnected intermediate their ends and each beingsupport. pivotally connected at one end to said window at spacedReferences Cited in the file of this patent points, means pivotallyconnecting the opposite end of 5 one of said regulator arms to saidsupport, regulator UNITED STATES PATENTS mechanism connected to one ofsaid regulator arms to 2,298,515 Sullivan Oct. 13, 1942 raise and lowersaid window, and a link pivotally c0n-- 2,410,363 Roethel Oct. 29, 1946nected at spaced points to said support and to the oppo- 2,714,035Limberg et a1. July 26, 1955 site end of the other of said arms, saidlink extending 10 2,819,066 Hadwin Ian. 7, 1958

